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Which two signs should be interchanged to make the given equation correct?(580 ÷ 80) + 90 × 8 - 30 = 5241. ÷ and –2. + and ÷3. + and –4. × and + |
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Answer» Correct Answer - Option 1 : ÷ and – Using option 1 ÷ and – (580 - 80) + 90 × 8 ÷ 30 According to BODMAS rule: 500 + 90 × 0.266 500 + 24 524 = 524 L.H.S = R.H.S Using option 2 + and ÷ (580 + 80) ÷ 90 × 8 - 30 According to BODMAS rule: 660 ÷ 90 × 8 - 30; 7.33 × 8 - 30 ≠ 524 Using option 3 + and – (580 ÷ 80) - 90 × 8 + 30 According to BODMAS rule: 7.25 - 90 × 8 + 30 ≠ 524 Using option 4 × and + (580 ÷ 80) × 90 + 8 - 30 According to BODMAS rule: 7.25 × 90 + 8 - 30 ≠ 524 Hence, interchanging ÷ and – will make equation correct. |
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